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HeartlandGM2012331

Appears In:
Heartland Institute: GM yanks funding, says global warming is real
Heartland Institute said global warming was 'junk science.'
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HeartlandGM2012331

A Chevrolet Volt extended-range electric vehicle sits at a 2009 event in Michigan where General Motors announced it would invest $43 million to manufacture lithium-ion battery packs for electric vehicles.

Bill Pugliano
AFP/Getty Images